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 | Acceso al texto completo restringido a Biblioteca INIA Tacuarembó. Por información adicional contacte bibliotb@tb.inia.org.uy. |
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Registro completo
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Biblioteca (s) : |
INIA Tacuarembó. |
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Fecha : |
21/02/2014 |
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Actualizado : |
24/09/2019 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Autor : |
GALETTA, M.A.; REINA, L.; RESQUÍN, F.; MANTERO, C.; GONZÁLEZ-PÉREZ, J.A.; ALMENDROS, G.; MENÉNDEZ, M.P.; GONZÁLEZ-VILADA, F.J. |
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Afiliación : |
Universidad de la República (UdelaR)/ Facultad de Química.; Universidad de la República (UdelaR)/ Facultad de Química.; JOSE FERNANDO RESQUIN PEREZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; Universidad de la República (UdelaR)/ Facultad de Agronomía.; Instituto de Recursos Naturales y Agrobiología de Sevilla, IRNAS-CSIC, Seville, Spaine.; SpaineMNCN-CSIC, Madrid, Spain.; Universidad de la República (UdelaR)/ Facultad de Química.; Instituto de Recursos Naturales y Agrobiología de Sevilla, IRNAS-CSIC, Seville, Spain. |
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Título : |
Chemometric appraisal of lignin pyrolytic assemblages from Eucalyptus woods relevant for pulping in Uruguay. |
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Fecha de publicación : |
2014 |
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Fuente / Imprenta : |
Journal of Analytical and Applied Pyrolysis, 2014, v. 109, p. 296-303. |
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DOI : |
10.1016/j.jaap.2014.08.001 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received 5 January 2014 // Accepted 2 August 2014 // Available online 13 August 2014. |
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Contenido : |
Analytical pyrolysis (Py-GC/MS) at 500°C was applied to study wood composition of Eucalyptus species(Eucalyptus grandis, Eucalyptus dunnii and Eucalyptus benthamii) which are relevant for pulping inUruguay. Multivariate data treatments mainly principal component analysis and discriminant analy-sis were used to explore differences between the original wood cultivars. Multivariate analyses withautomatic backwards variable selection indicated that simplified methoxyphenol patterns (up to 10compounds) are sufficient for wood discrimination in terms of species and geographical origin butalso with purposes of forecasting the ease of delignification of the resulting pulps measured as activealkali. No additional chemotaxonomical accuracy was achieved when the data sets were enlarged withcarbohydrate-derived products. On the other side, discriminant or forecasting models (partial leastsquares and multiple linear regression) were much less significant when based on individual diag-nostic compounds, groups of compounds, or the classical syringyl-to-guaiacyl (S/G) ratio. Principalcomponent analysis indicated that the variability in lignin composition due to bioclimatic variations(spatial replications) was more significant than that due to phylogenetic differences (species andcultivars). |
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Palabras claves : |
ANALYTICAL PYROLYSIS; DISCRIMINANT ANALYSIS; FORESTACIÓN; LIGNIN METHOXYPHENOLS; MULTIPLE REGRESSION MODELS; PARTIAL LEAST SQUARES REGRESSION; PRINCIPAL COMPONENT ANALYSIS. |
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Asunto categoría : |
K10 Producción forestal |
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Marc : |
LEADER 02390naa a2200313 a 4500
001 1017467
005 2019-09-24
008 2014 bl uuuu u00u1 u #d
024 7 $a10.1016/j.jaap.2014.08.001$2DOI
100 1 $aGALETTA, M.A.
245 $aChemometric appraisal of lignin pyrolytic assemblages from Eucalyptus woods relevant for pulping in Uruguay.$h[electronic resource]
260 $c2014
500 $aArticle history: Received 5 January 2014 // Accepted 2 August 2014 // Available online 13 August 2014.
520 $aAnalytical pyrolysis (Py-GC/MS) at 500°C was applied to study wood composition of Eucalyptus species(Eucalyptus grandis, Eucalyptus dunnii and Eucalyptus benthamii) which are relevant for pulping inUruguay. Multivariate data treatments mainly principal component analysis and discriminant analy-sis were used to explore differences between the original wood cultivars. Multivariate analyses withautomatic backwards variable selection indicated that simplified methoxyphenol patterns (up to 10compounds) are sufficient for wood discrimination in terms of species and geographical origin butalso with purposes of forecasting the ease of delignification of the resulting pulps measured as activealkali. No additional chemotaxonomical accuracy was achieved when the data sets were enlarged withcarbohydrate-derived products. On the other side, discriminant or forecasting models (partial leastsquares and multiple linear regression) were much less significant when based on individual diag-nostic compounds, groups of compounds, or the classical syringyl-to-guaiacyl (S/G) ratio. Principalcomponent analysis indicated that the variability in lignin composition due to bioclimatic variations(spatial replications) was more significant than that due to phylogenetic differences (species andcultivars).
653 $aANALYTICAL PYROLYSIS
653 $aDISCRIMINANT ANALYSIS
653 $aFORESTACIÓN
653 $aLIGNIN METHOXYPHENOLS
653 $aMULTIPLE REGRESSION MODELS
653 $aPARTIAL LEAST SQUARES REGRESSION
653 $aPRINCIPAL COMPONENT ANALYSIS
700 1 $aREINA, L.
700 1 $aRESQUÍN, F.
700 1 $aMANTERO, C.
700 1 $aGONZÁLEZ-PÉREZ, J.A.
700 1 $aALMENDROS, G.
700 1 $aMENÉNDEZ, M.P.
700 1 $aGONZÁLEZ-VILADA, F.J.
773 $tJournal of Analytical and Applied Pyrolysis, 2014$gv. 109, p. 296-303.
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Registro original : |
INIA Tacuarembó (TBO) |
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Registro completo
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Biblioteca (s) : |
INIA Las Brujas. |
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Fecha actual : |
05/12/2023 |
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Actualizado : |
05/12/2023 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Nacionales |
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Circulación / Nivel : |
Nacional - -- |
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Autor : |
PALLADINO, C.; PAREJA, L.; PEREYRA, S.; PÉREZ, C. |
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Afiliación : |
CINTIA PALLADINO, Universidad de la República, Cenur Litoral Norte, PDU Abordaje Holístico al impacto de los agroquímicos, Paysandú, Uruguay; LUCIA PAREJA, Universidad de la República, Cenur Litoral Norte, Departamento de Química del Litoral, Paysandú, Uruguay; SILVIA ANTONIA PEREYRA CORREA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; CARLOS PÉREZ, Universidad de la República, Facultad de Agronomía, Departamento de Protección Vegetal, Paysandú, Uruguay. |
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Título : |
Problems of pesticide residues in grains. [La problemática de los residuos de fitosanitarios en granos]. [Problemática dos resíduos de fitossanitários em grãos]. |
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Complemento del título : |
I Technical Conference of the Plant Protection Group - EEMAC. |
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Fecha de publicación : |
2023 |
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Fuente / Imprenta : |
Agrociencia Uruguay, 2023, Vol.27 (Supplement), e1230. https://doi.org/10.31285/AGRO.27.1230 -- OPEN ACCESS. |
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ISSN : |
2730-5066 |
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DOI : |
10.31285/AGRO.27.1230 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received 24 Jul 2032; Accepted 25 Jul 2023; Published 11 Sep 2023. -- Editor: Horacio Silva, Universidad de la República, Facultad de Agronomía, Paysandú, Uruguay. -- Correspondence: Cintia Palladino, cpalladino@cup.edu.uy -- License: This work is licensed under a Creative Commons Attribution 4.0 International License. (https://creativecommons.org/licenses/by/4.0/ ) |
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Contenido : |
Farmers use various pesticides to control pests, weeds, and diseases in order to meet the demands in terms of yields and quality of agricultural products. The use of pesticides in Uruguay has increased steadily since 2000(1). The total number and amount of active substances imported increased from 3.9 to 10.6 thousand tons between years 2000 and 2020. Within plant protection products, herbicides had the highest increase, from 2.1 thousand tons in 2000 to 9.5 thousand tons in 2020(1). Similar trends are observed worldwide(2). |
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Palabras claves : |
Cereais; Cereals; Intensidad de uso de fitosanitarios; Intensidade de uso de produtos fitossanitários; Límites máximos de residuos; Maximum residue limit; Níveis máximos de resíduos; Pesticide residue in grains; Pesticide use intensity; Residuos de fitosanitarios en granos; Resíduos de produtos fitossanitário; SISTEMA AGRÍCOLA-GANADERO - INIA. |
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Thesagro : |
CEREALES. |
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Asunto categoría : |
-- |
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URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/17423/1/AGRO.27.1230.pdf
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Marc : |
LEADER 02167naa a2200349 a 4500
001 1064380
005 2023-12-05
008 2023 bl uuuu u00u1 u #d
022 $a2730-5066
024 7 $a10.31285/AGRO.27.1230$2DOI
100 1 $aPALLADINO, C.
245 $aProblems of pesticide residues in grains. [La problemática de los residuos de fitosanitarios en granos]. [Problemática dos resíduos de fitossanitários em grãos].$h[electronic resource]
260 $c2023
500 $aArticle history: Received 24 Jul 2032; Accepted 25 Jul 2023; Published 11 Sep 2023. -- Editor: Horacio Silva, Universidad de la República, Facultad de Agronomía, Paysandú, Uruguay. -- Correspondence: Cintia Palladino, cpalladino@cup.edu.uy -- License: This work is licensed under a Creative Commons Attribution 4.0 International License. (https://creativecommons.org/licenses/by/4.0/ )
520 $aFarmers use various pesticides to control pests, weeds, and diseases in order to meet the demands in terms of yields and quality of agricultural products. The use of pesticides in Uruguay has increased steadily since 2000(1). The total number and amount of active substances imported increased from 3.9 to 10.6 thousand tons between years 2000 and 2020. Within plant protection products, herbicides had the highest increase, from 2.1 thousand tons in 2000 to 9.5 thousand tons in 2020(1). Similar trends are observed worldwide(2).
650 $aCEREALES
653 $aCereais
653 $aCereals
653 $aIntensidad de uso de fitosanitarios
653 $aIntensidade de uso de produtos fitossanitários
653 $aLímites máximos de residuos
653 $aMaximum residue limit
653 $aNíveis máximos de resíduos
653 $aPesticide residue in grains
653 $aPesticide use intensity
653 $aResiduos de fitosanitarios en granos
653 $aResíduos de produtos fitossanitário
653 $aSISTEMA AGRÍCOLA-GANADERO - INIA
700 1 $aPAREJA, L.
700 1 $aPEREYRA, S.
700 1 $aPÉREZ, C.
773 $tAgrociencia Uruguay, 2023, Vol.27 (Supplement), e1230. https://doi.org/10.31285/AGRO.27.1230 -- OPEN ACCESS.
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